6analysis 7signature analysis the reaction started by

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6)Analysis 7)Signature Analysis The reaction started by combining (10 mL) of crystal violet and sodium hydroxide respectively inside a (250 mL) beaker. As time proceeded the color of the reaction pro- ceeded from a dark defined purple color to an almost colorless product. This change was measured by the colorimeter, which used green LED light at a wavelength of (565 nanometers) to monitor the absorbance over time.
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The rate law was determined by plotting a graph of absorbance versus time and then determining the most linear plot of the graph. The rate law was calculated at: rate = k[CV+], which is - .121s -1 [CV+] -1 (k = .121 and m = -1). Some possible sources of error could have been smudging on the cuvette between readings, and leaving the actual cuvette in the colorimeter too long (heat will cause the reaction to proceed faster). Also, there is a minor discrepancy in the time fig- ures as some of the collected data was taken just a second after the reading mark. The major source of error for this reaction was placing the cuvette in the wrong way skewing the reading by a large amount. In conclusion, the reaction went satisfactory, but for a fu- ture reaction protocol would be monitored much closer to ensure the results wanted are the results obtained.
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Christopher Reinemann
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